JPH01175069U - - Google Patents
Info
- Publication number
- JPH01175069U JPH01175069U JP7148688U JP7148688U JPH01175069U JP H01175069 U JPH01175069 U JP H01175069U JP 7148688 U JP7148688 U JP 7148688U JP 7148688 U JP7148688 U JP 7148688U JP H01175069 U JPH01175069 U JP H01175069U
- Authority
- JP
- Japan
- Prior art keywords
- reflected light
- optical filter
- infrared rays
- receives
- television
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Closed-Circuit Television Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7148688U JPH01175069U (fr) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7148688U JPH01175069U (fr) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01175069U true JPH01175069U (fr) | 1989-12-13 |
Family
ID=31296694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7148688U Pending JPH01175069U (fr) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01175069U (fr) |
-
1988
- 1988-05-30 JP JP7148688U patent/JPH01175069U/ja active Pending